Hermann voigt



@nimh gieten atnt @frn HERMANN VOI-GT, OF BUFFALO, NEW YORK.

Lata-s Patent No. 67,086, ma Juzg 23, 1867.

IMPROVED CURTAIN I`IXTURE.

TO ALL WHOM I'.l. MAY CONCERN:

Beit known that I, HERMANN VOIGT, oi' the city of Buffalo, in the countyof Erie, and State of New York, have invented certain new and usefulImprovements in Window-Shade Fixtures; and I do hereby declare that thefollowing is a full andV exact-description thereof, reference being hadtothe accompanying drawings, making part of this specification, inwhich-f Figure 1 is a view of my improvements partially in sectionattached to -the window-frame.

Figures 2 and 1,l elevations of the two sides of the lower pulley.

Figure 4 is a horizontal section oi` the saine in plane of line x x,iig. 2.

Lilie letters of reference designate corresponding parts in all thegures.

My invention relates to the construction of thc lower pulley ofwindow-shade or curtain-fixtures, and to a device for regulating thetension oi`-the roller-cord, as herein specifically set forth.

`I a the drawings, A A represent portions of one side ot' thewindow-casing, to which the shade-roller B, provided with the ordinaryfixed pulley C, is suspended in the usual manner. D is theendless-roller cord, which connects the roller-pulley with a small lowerpulley, E. VThis pulley is mounted in the peculiar manner hereinafterdescribed in a block or frame, F, foru ed by bending sheet Inet-al,asshown, or by casting. The tension device consists of a frame or case,G, (preferably of cylindrical form,) which is attached to thewindow-casing by screws, as shown, or in any other suitable manner,which encloses a small axis, 7L, which passes loosely through the caseand screws into a knob, I, onthe outside, by which it is turned. .Acord,j, attached to the.

frame of pulley E, descends through a suitable'hole in the upper portionof the case G, and is fastened to the axis h, and wound thereon byturning the knob I, by which the roller-cord D maybe tightened orloosened at pleasure. To prevent the force of the tension of the cordsfrom turning thev axis and loosening the device, I employ within thecase G a friction-disk, Z, which is provided with-a slot, on, thatallows the introduction of the axis, which is recessed at az, onopposite sides contiguous to the edges ofthe slot, which t therein, andprevent the diskturning as well as from sliding on the axis. The shank7L is screwed into the knob I, pressing the periphery olthe ydiskagainst the surface of the case, so that the friction between the twowill prevent the axis from turning, except whenmoved by power applied tothe knob. If the friction surfaces become worn the defect is remedied bysimply giving the sha-nka'partial turn in the knob. The pulley E issecured in the frame F by means of a semi-cylindrical pin, O, shown mostclearly in g. 4, which represents a. plan of the upper, non-bearing, orplane surface. At each end on bot-h sides of this pin are formednotches,pp, cut at right angles with the plane surface for the receptionof the sides ofl the pulley-frame, as shown in fig. et. There is also avertical slot, g, made in the end for a purpose presently to beexplained. Slotted openings r and r are formed in the two sides of F,there being left in r a' central rib, s, fig. 2, which acts as a stop bythe base of the slot q, in which it fits, striking against it as the pinis inserted, (shown in gs. 2 and-4.) The pin is inserted in the lowerandenlarged portion of the opening'r in the front side and passedthrough `pulley and i" on the opposite side till` its passage isarrested by the stop s, when the pin is slid up'in the slots, the edgesof the frame F itting in the notches p, and thereby securely holding itin place, as represented.

The advantages of my improvements are obvious. The tension device, whileit is simple of construction, is not liable to get out of repair, andenables the roller-cord to be regulated with the greatest ease wheneverrequired. l It also presents a tasty appearance, as the knob, which maybe made ornamental, and the cylindrical case are the only parts that areexposed to view. This, contrasted with the distasteful and unreliableapplianees in ordinary use, renders its advantages sullicientlymanifest.

What I claim as my invention, and desire to secure by Letters Patent, is

Regulating the tension of the roller-cord by the winding of a cordattached to the lower pulley or bearingthereof around a'spindle,substantially as sct forth.

I also claim the combination of the knob I, spindle It, andfriction-bearing l with the co'rdj and pulley E, arranged and operatingsubstantially in the manner and for the purpose set forth.

I also claiurthc axial pin O of pulley E,-c`onstructed as described, incombination with the frame F, provided with slotted openings 1' 9" andstop s, arranged and operating with the roller-cord and pulley D C,substantially as and forthe purpose specified.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

HERMANN voter.

Witnesses:

JAY HYATT, J. R. DRAKE.

